by easileigh April 25, 2003
Group slut fic. Refers to a type of erotic fanfiction in which any and all members of a particular (usually all male) ensemble cast have crazy sex with each other. Probably originated in popslash fandom.
OMG, I just read the hottest GSF. All the members of *nsync were having hot mansex to the sweet strains of "This I Promise You!"
by iguessnot July 03, 2006
The Grove Street Families of Grand Theft Auto: San Andreas. Sweet, CJ's brother, is the leader of GSF, although CJ is the brains behind the organization.
by Bob February 21, 2005
by Joel November 17, 2004
Jim: "Can you get that report done?"
Bob: "Man, with it being so close to the holidays, my GSF is low. Can it wait till Monday?"
Bob: "Man, with it being so close to the holidays, my GSF is low. Can it wait till Monday?"
by onesmartcookie38 December 27, 2011
by aicetera September 08, 2010